125396437903 has 8 divisors (see below), whose sum is σ = 136823881680. Its totient is φ = 113973622080.

The previous prime is 125396437889. The next prime is 125396437909. The reversal of 125396437903 is 309734693521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125396437903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125396437909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100208 + ... + 1208821.

It is an arithmetic number, because the mean of its divisors is an integer number (17102985210).

Almost surely, 2^125396437903 is an apocalyptic number.

125396437903 is a deficient number, since it is larger than the sum of its proper divisors (11427443777).

125396437903 is a wasteful number, since it uses less digits than its factorization.

125396437903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313977.

The product of its (nonzero) digits is 3674160, while the sum is 52.

The spelling of 125396437903 in words is "one hundred twenty-five billion, three hundred ninety-six million, four hundred thirty-seven thousand, nine hundred three".